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Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless Steel

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Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless Steel

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Certification : CE/IATF16949/45001/14001/9001

Torque Stability : ±5%

Conical Profile Angle : 14°

Salt Spray Resistance : 2000+ hours (ASTM B117)

Price : Negotiable

Delivery Time : Negotiable

Load Type : Compression

Stacking Capacity : 2-6 discs

Load Capacity Increase : 40-180%

Specification : SUS 302

Packaging Details : Carton

Vibration Test Cycles : 500,000 at 150 Hz

Brand Name : Sunzo

Preload Force : 50,000 N

Operating Temperature : -40°C to 120°C

Stainless Steel Grade : 17-4 PH (ASTM A693 Grade 660)

Pressure Resistance : 100+ bar

Friction Coefficient : 0.12±0.02

MOQ : Negotiable

Shape : Flat

Vibration Frequency : 200 Hz

Torque Range : 15,000 Nm

Payment Terms : Negotiable

Material : Steel

Thickness Range : 3mm to 12mm

Yield Strength : 1100 MPa

Place of Origin : Sihong, China

Preload Retention : 98% after 10,000 cycles

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High Torque Disc Spring: The Key to Secure High-Torque Bolted Connections
Bolted connections in high-torque applications—where preload forces exceed 50,000 N and operational vibrations reach 200 Hz—are inherently prone to loosening. According to ISO 16130 statistics, this phenomenon is responsible for 23% of industrial equipment failures.
The High Torque Disc Spring addresses this critical issue through a patented torque retention mechanism that maintains 98% of initial preload after 10,000+ load cycles.
Engineering Design
Engineered with a precision-calculated conical profile (14° angle) and variable thickness design (3mm to 12mm), this specialized disc spring exerts a consistent radial force that counteracts torque-induced relaxation. This ensures bolted joints remain within ±5% of target torque even under extreme rotational forces up to 15,000 Nm.
Material & Construction
  • Constructed from precipitation-hardened 17-4 PH stainless steel (ASTM A693 Grade 660)
  • Minimum yield strength of 1100 MPa
  • Three-stage surface treatment process:
    • Electropolishing for micro-roughness reduction
    • PTFE coating for friction stabilization (coefficient of friction 0.12±0.02)
    • Passivation to achieve 2000+ hours of salt spray resistance per ASTM B117
Performance Features
Feature Specification
Modular Configuration Nested disc design allows stacking of 2-6 discs
Load Capacity Increase 40-180% with stacked configuration
Vibration Performance Prevents bolt loosening in 100% of test samples at 500,000 vibration cycles (150 Hz)
Maintenance Reduction 65% reduction in maintenance intervals compared to conventional lock washers
Field-Tested Applications
Automotive Crankshaft Assemblies (8,000 RPM engine speeds)
Wind Turbine Flange Connections (-40°C to 120°C operating range)
Offshore Drilling Rigs (100+ bar pressure environments)
Gas Turbine Casings
Aerospace Landing Gear
Heavy-Duty Press Tooling
Backed by FEA simulation data and ISO 898-2 compliance testing, the High Torque Disc Spring delivers quantifiable reliability. For critical applications, this component ensures connection integrity that directly translates to 32% lower downtime costs and enhanced operational safety.
Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless Steel

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